CN1086876A - Exhaust-gas turbocharger - Google Patents
Exhaust-gas turbocharger Download PDFInfo
- Publication number
- CN1086876A CN1086876A CN 93109635 CN93109635A CN1086876A CN 1086876 A CN1086876 A CN 1086876A CN 93109635 CN93109635 CN 93109635 CN 93109635 A CN93109635 A CN 93109635A CN 1086876 A CN1086876 A CN 1086876A
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- China
- Prior art keywords
- dividing plate
- gas compressor
- space
- gas
- exhaust
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
Configuration one double-walled dividing plate (4) between the gas compressor (2) of exhaust-gas turbocharger and turbo machine (3).Upward be provided with radial rib (12) and disc (14) at inwall (13) for strengthening purpose.At gas compressor and dividing plate is space (8) and (11) on border, compared with prior art, makes heat transfer become more difficult to gas compressor, thereby has prolonged the working life of gas compressor.Circumferential groove on the dividing plate inwall (15) has slowed down the increased pressure of sealing strip (7) lower room, thereby has reduced end thrust.
Description
The present invention relates to a kind of exhaust-gas turbocharger, wherein between gas compressor and turbo machine, be provided with a dividing plate, so that hide the waste gas that reduces phlegm and internal heat.
This exhaust-gas turbocharger is known.So far, a single wall dividing plate has been set being installed between gas compressor on the common shaft and the turbo machine, it is used for the hot waste gas behind the turbo machine is isolated with gas compressor.Form a space by means of a flat deck, because its existence, waste gas only carries out indivisible Re Jiaomo in this space, thereby as a thermal-protective coating.In equipped process, adopt a directed axle bush, in order to avoid damage the sealing strip (labyrinth-type excluder) between gas compressor and the dividing plate as directional use (supported diaphragm).When bearing failure (radial internal clearance increase), described axle can be run into dividing plate, thereby can be badly damaged.This orientation axle bush is made of aluminum, damages to limit or to prevent.
In addition, flow through gas compressor, described axle and turbine wheel of the gas leakage that spilt by the gap of labyrinth gland of this dividing plate and protection axle bush guiding enters exhaust casing.Below labyrinth gland, a free space is set between gas compressor and dividing plate.Gas compressor, described axle and turbine wheel have been cooled off in this gas leakage.It hinders positive waste gas and arrives gas compressor, therefore is referred to as to shield spacious air.
The worn-out air of screen between gas compressor and the dividing plate can rotate with gas compressor, thereby sets up pressure below described sealing strip.This pressure of setting up has increased the end thrust to bearing.
The increase of end thrust is to prevent by some ribs are set on the dividing plate in above-mentioned free space.These ribs form some eddy current, although they have reduced the end thrust to bearing really, yet bring a shortcoming: the thermodiffusion to compressor impeller has increased, and it causes reduce its working life.
The present invention attempts to avoid all these shortcomings.Its objective is end thrust is reduced, the compressor impeller temperature is reduced, and do not increase additional parts, thereby obtain the working life higher than prior art.
This reaches according to the present invention.Just press described exhaust-gas turbocharger, free space between compressor and the dividing plate enlarges by aforesaid cross section, dividing plate is made by the double-walled pattern, so just, formed an additional space, wherein dispose radial rib, and be provided with some grooves, extend along the periphery of inner wall towards gas compressor of double-walled dividing plate.
If it is then more favourable with some disc this inwall to be connected in dividing plate.
Compare with prior art and the invention has the advantages that, with regard to exhaust gas turbine press increase need not be extra with regard to the device complex component can obtain less end thrust and lower compressor impeller temperature, thereby make the operating time ductility.
After by means of the referenced drawings following detailed description, can more completely understand the present invention and attendant advantages thereof, wherein:
Fig. 1 represents the part longitudinal section of exhaust-gas turbocharger;
Fig. 2 represents to have the partial view of the dividing plate of sealing strip;
Fig. 3 represents to have the partial view of the dividing plate of cover plate;
Fig. 4 represents the cross section through double-walled dividing plate (disc and rib).
Only be presented as and understand basic building block required for the present invention.The parts of Biao Shi this system are not, for example, have the waste gas shell of the turbo machine of outlet pipe and pipeline, or the air inlet component of compressor assemblies.The flow direction of working medium is indicated with arrow.
According to Fig. 1, exhaust-gas turbocharger of the present invention comprises the gas compressor 2 that is installed on the common shaft 1, turbo machine 3 and be arranged at gas compressor 2 and turbo machine 3 between double-walled dividing plate 4.This dividing plate 4 is mainly used in the hot waste gas that makes behind the turbo machine isolates with gas compressor.With screw twist in dividing plate 4(each 3) thereby reduce the cover plate 5 in waste gas space 6, strengthen its function by the space of such formation because in this space only the waste gas of minute quantity Re Jiaomo takes place, thereby as a thermal-protective coating.
Between erecting stage, guiding axle bush 9 is used for orientation (supporting of dividing plate 4) at exhaust-gas turbocharger, in order to avoid damage the sealing strip 7(labyrinth-type excluder between gas compressor 2 and the dividing plate 4).Under the situation of bearing failure (footpath increases with play), axle 1 can contact dividing plate 4, thereby sealing strip 7 is by badly damaged.
Free space 8 between gas compressor 2 and dividing plate 4 enlarges (existing in the prior art) because of the cross section of rib.As a result, prevented the generation eddy current, thereby made the thermodiffusion more can difficulty to the compressor impeller.In this structure, because the pressure that the circumference air stream in the space 8 below the sealing strip 7 of the single wall dividing plate of prior art is set up makes the thrust increase.Under the situation of exhaust-gas turbocharger of the present invention, this air stream circumferential groove 15(Fig. 2 on inwall 13) arrive in the space 11, expand there.Like this, prevent build-up pressure, thereby prevented the end thrust increase.
The worn-out air of screen in the gas compressor 2 11 flows to axle 1 through sealing strip 7 and space 8 and in the mode strengthened through the space, flows into the waste gas space 6 of turbo machine 3 then between the protection axle sleeve 10 and the turbine disk 16.Like this, guaranteed the cooling of axle 1 and worn-out to the waste gas screen of gas compressor 2.
In space 11, on inwall 13, be provided with radial rib 12(Fig. 4).As a result, strengthen wall 13, and prevented the circumferential flow in space 11.Inwall 13 footpath disc 14 are connected in dividing plate 4.
Directed axle bush 9 except the top function of having mentioned, also makes two spaces 8 and 11 seal mutually by keeping with deciding part 17, like this, the worn-out air of only indivisible screen can be from the space 11 arrival spaces 8.
Compare with prior art, two spaces 8 and 11 make in fact more difficult to the heat transfer of gas compressor.The low temperature of Huo Deing has caused compressor impeller to prolong working life according to this.Simultaneously, the circumferential groove 15 that 7 times surface pressure increases of sealing strip are slowed down has worked to reduce end thrust.
Obviously, according to above-mentioned instruction, the present invention can have many modifications and changes.Therefore, be appreciated that and remove that except specifically described, the present invention can implement within the scope of the appended claims here.
Claims (2)
1, a kind of exhaust-gas turbocharger comprises a gas compressor that is disposed on the common shaft; One turbo machine and a dividing plate, this dividing plate separates the exhaust space of turbo machine by means of a cover plate that is disposed between gas compressor and the turbine, between gas compressor and this dividing plate, be provided with sealing strip (labyrinth-type excluder), be provided with a space below the sealing strip between gas compressor and dividing plate, configuration one directed axle bush on axle, support this dividing plate together with a fixed block, also dispose the axle sleeve of an isolation air-flow, the free space of its central diaphragm is owing to the cross section of aforementioned rib enlarges, this dividing plate is made the double-walled type, one added space appears like this, the radial rib of some dividing plates of configuration in this space, and some are set along the groove of its periphery of inner wall extended surface to gas compressor.
2, by the described exhaust-gas turbocharger of claim, it is characterized in that described inwall is connected with described dividing plate by means of some disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93109635 CN1030342C (en) | 1992-08-03 | 1993-08-03 | Exhaust gas turbocharger |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4225625A DE4225625A1 (en) | 1992-08-03 | 1992-08-03 | Exhaust gas turbo-charger with compression and turbine on common shaft - has increased space round ribbed cross-section and jacketed intermediate wall between compressor and turbine |
| DEP4225625.9 | 1992-08-03 | ||
| CNP4225625.9 | 1992-08-03 | ||
| CN 93109635 CN1030342C (en) | 1992-08-03 | 1993-08-03 | Exhaust gas turbocharger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1086876A true CN1086876A (en) | 1994-05-18 |
| CN1030342C CN1030342C (en) | 1995-11-22 |
Family
ID=25743057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93109635 Expired - Lifetime CN1030342C (en) | 1992-08-03 | 1993-08-03 | Exhaust gas turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1030342C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333154C (en) * | 2002-09-05 | 2007-08-22 | 霍尼韦尔国际公司 | Tubrocharger comprising a variable nozzle device |
| CN101809299B (en) * | 2007-09-26 | 2013-01-02 | Abb涡轮系统有限公司 | Hydrodynamic axial bearing |
| CN104018933A (en) * | 2013-02-28 | 2014-09-03 | Abb涡轮系统有限公司 | Intermediate wall for sealing the rear space of a radial-flow compressor |
| CN104806306A (en) * | 2014-07-07 | 2015-07-29 | 蒋旭东 | Turbocharger housing |
| CN104854312A (en) * | 2012-11-21 | 2015-08-19 | 沃尔沃卡车集团 | Power turbine unit |
| CN104956046A (en) * | 2012-12-17 | 2015-09-30 | 博格华纳公司 | Turbocharger outboard purge seal |
| CN105980685A (en) * | 2014-06-25 | 2016-09-28 | 三菱重工业株式会社 | Labyrinth seal device for axial-flow turbine and exhaust gas turbocharger equipped with same |
| CN109312657A (en) * | 2016-03-30 | 2019-02-05 | 三菱重工发动机和增压器株式会社 | Turbocharger |
| CN110671157A (en) * | 2019-11-22 | 2020-01-10 | 东方电气集团东方汽轮机有限公司 | Radial steam seal structure for radial turbine and radial turbine |
-
1993
- 1993-08-03 CN CN 93109635 patent/CN1030342C/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333154C (en) * | 2002-09-05 | 2007-08-22 | 霍尼韦尔国际公司 | Tubrocharger comprising a variable nozzle device |
| CN101809299B (en) * | 2007-09-26 | 2013-01-02 | Abb涡轮系统有限公司 | Hydrodynamic axial bearing |
| CN104854312A (en) * | 2012-11-21 | 2015-08-19 | 沃尔沃卡车集团 | Power turbine unit |
| CN104854312B (en) * | 2012-11-21 | 2016-07-06 | 沃尔沃卡车集团 | Power turbine unit |
| CN104956046B (en) * | 2012-12-17 | 2017-12-19 | 博格华纳公司 | Sweeping type seals on the outside of turbocharger |
| CN104956046A (en) * | 2012-12-17 | 2015-09-30 | 博格华纳公司 | Turbocharger outboard purge seal |
| CN104018933A (en) * | 2013-02-28 | 2014-09-03 | Abb涡轮系统有限公司 | Intermediate wall for sealing the rear space of a radial-flow compressor |
| CN105980685A (en) * | 2014-06-25 | 2016-09-28 | 三菱重工业株式会社 | Labyrinth seal device for axial-flow turbine and exhaust gas turbocharger equipped with same |
| CN105980685B (en) * | 2014-06-25 | 2017-10-17 | 三菱重工业株式会社 | The labyrinth-type excluder of axial flow turbo-machine and the exhaust turbine supercharger for possessing the device |
| CN104806306A (en) * | 2014-07-07 | 2015-07-29 | 蒋旭东 | Turbocharger housing |
| CN109312657A (en) * | 2016-03-30 | 2019-02-05 | 三菱重工发动机和增压器株式会社 | Turbocharger |
| US11022130B2 (en) | 2016-03-30 | 2021-06-01 | Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | Turbocharger |
| CN109312657B (en) * | 2016-03-30 | 2021-10-15 | 三菱重工发动机和增压器株式会社 | Turbocharger |
| CN110671157A (en) * | 2019-11-22 | 2020-01-10 | 东方电气集团东方汽轮机有限公司 | Radial steam seal structure for radial turbine and radial turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1030342C (en) | 1995-11-22 |
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| C10 | Entry into substantive examination | ||
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ABB SWITZERLAND HOLDINGS CO., LTD. Free format text: FORMER NAME OR ADDRESS: YA RUIYA BOLANGBOWLIC CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Patentee after: Asea Brown Boveri AB Patentee before: Asea Brown Boveri Ltd. |
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| ASS | Succession or assignment of patent right |
Owner name: ABB SWITZERLAND CO., LTD. Free format text: FORMER OWNER: ABB SWITZERLAND HOLDINGS CO., LTD. Effective date: 20050218 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20050218 Address after: Baden, Switzerland Patentee after: ABB Schweiz AG Address before: Baden, Switzerland Patentee before: Asea Brown Boveri AB |
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| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130803 Granted publication date: 19951122 |